Bolt cutter



Allg. l, 1931. Q A, MEDEAN, JR 1,818,237

BOLT CUTTER 4Filed June 23, 1950 7 nvenlor Ailomey Patented Aug. 11, 1931 PATENT @Flll CHARLES A. MEDEAN, CIR., OF INGLEW'OOD, CALIFORNIA BOLT CUTTER Application filed June 23, 1980. Serial No. 463,259.

This invention relates to certain new and novel improvements in bolt cutters.

A primary object of this invention is to provide means for locking the pivot bolt between the handle members of the cutter and the blades pivoted to the handle whereby all the pivot bolts are locked against casual rotation.

A still further object of the invention is to lo -provide means for locking the pivot bolt forming a part of the bolt cutter construction in a thoroughly reliable, practical and eliicient manner.

Other objects and advantages of the invention will become apparent during a study of the following description7 taken in connection with the accompanying drawings wherein:

Figure l is an elevation of a bolt cutter embodying the features of the present invention,

Figure 2 is a perspective view of one of the locking plates,

Figure 3 is a similar view of the other of the locking plates,

Figure 4 is a plan view of the locking plate as shown in Figure 3,

Figure 5 is an elevational view of the pivot bolt,

Figure 6 is a detail sectional view taken substantially on the line 6 6 of Figure 1 and looking in the direction of the arrow.

With reference more in detail to the drawings it will be seen that 1 1 designates the handles of the bolt cutter. As is well known the outwardly extending arm of the handle at their upper ends are pivoted together, while to the upper ends of the handle 1 1 are also pivoted the cutter blades 2 2.

The blades 2 2 are pivoted to the handles 1 1 through the medium of suitable pivot bolts 3 3. For pivoting the handles 1 1 together I provide a pivot bolt 4 adapted to pass through suitable apertures provided therefor in the laterally directed portions of the handles 1 1, and it will be noted that the bolt 4 adjacent the head thereof is provided with a shoulder 4.

Further, the invention comprises a pair oi locking plates 5 and 6 respectively. The

locking pla-tes 5 and 6 have rounded ends disposed in overlapping relation, the rounded ends being apertured as at 7 and S respectively. The pivot bolt 4 is passed through the apertures 7 and 8 and the apertures provided therefor in the handle 1 1, the shoulder 4 of he pivot bolt fitted within the registering apertures 7 and 3. rlhe plate 5 at its free end is provided with a ll-shaped notch 9 for engaging' suitably the head of one ot the pivot bolts 3 for retaining said one pivot bolt against casual rotative movement.

T he other of the locking plates 6 at its free end is provided with a V-shaped notch 10 for engaging the edge of the other ot the pivot bolt 3 thus retaining the other of the pivot bolt 3 against casual rotative movement. It will be noted that plates 5 and 6 forwardly of their respective notches terminate in spaced parallel extensions engaging the head of pivot bolt 3 on diametrically opposite sides of the head.

rIhe locking plate 6 is made out of spring steel and is bent inwardly from one longitudinal edge thereof on a longitudinal line 11 to provide an upstanding flange 12. The flange 12 at the notched end of the plate 6 is beveled as at 13 while that end of the flange 12 adjacent the aperture 8 of the plate 6 is bent or curved inwardly over the plate 6 as at 14 to rovide a retaining linger engaging the edge of the bolt 4 for retaining the bolt 4 against casual rotative movement.

Thus it will be seen that when the plates 5 and 6 are pivotally associated with one another and with the handle 1 1 through the medium of the bolt 4 which provides a pivot common to the plates 5 and 6 and the handle 1 1 the plates 5 and 6 may be disposed in diverging relation whereby their notched ends may engage the heads orn the bolts 3 3 and the linger 13 may engage the heads of the bolts 4 -4 whereby the bolts embodied in thc construction of the bolt cutter are held against casual rotation.

Even though I have herein shown and de scribed the preferred embodiment of the invention, it is to be understood that the same is susceptible to changes fully comprehended tlf) by the spirit of the invention as herein described, and the scope of the appended claims.

Having thus described my invention, What I claim as new is:

1. A bolt cutter comprising a pair of outtingl blades, operating' handles therefor, bolts pivotally connecting the said blades to said handles, a pair of looking plates, a bolt passing through said looking` plates and said handles, said plates respectively provided with a notch for receiving,` one of the irst inen- V tioned pivot bolts.

, ting blades, operating 2. A bolt Cutter Comprising a pair of onthandles therefor, bolts pivotally connecting3 the said blades to said handles, a pair ot locking' plates, a boit passinf;I through said looking plates, and pivotall)7 connecting' said handles, .said plates respecgively provided with means for engaging one oi' the i'irst mentioned )ivot bolts, and one of said plates having' an exteneion engaging the last mentioned pivot boit for retaining the latter against rotation.

In testimony whereof l al'ix niv @immature CHARLES A. dEDEi nf, JR. 

